Abrasive material and production method of abrasive material
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United States of America Patent
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Oct 29, 2019
Grant Date -
Nov 2, 2017
app pub date -
Oct 6, 2015
filing date -
Oct 28, 2014
priority date (Note) -
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Abstract
It is an object of the present invention to provide an abrasive material which enables: processing efficiency and finished planarity of a substrate material to be simultaneously improved at a high level; polishing costs to be reduced; and a difficult-to-process substrate composed of sapphire or silicon carbide to be polished efficiently and precisely. An abrasive material comprises a substrate and an abrasive layer laminated on a front face side of the substrate, wherein the abrasive layer includes a binder containing an inorganic substance as a principal component, and abrasive particles dispersed in the binder, wherein a front face of the abrasive layer comprises a plurality of regions provided through dividing by grooves, and wherein a maximum peak height (Rp) on the front face of the abrasive layer is no less than 2.5 μm and no greater than 70 μm.
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